20758556

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8147}}^1$

素因数の和:8178

約数の個数: 36

約数和(自身を含む): 45514728

約数和(自身を除く): 24756172

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8147, 16294, 32588, 57029, 105911, 114058, 211822, 228116, 399203, 423644, 741377, 798406, 1482754, 1596812, 2965508, 5189639, 10379278, 20758556]

約数ペア:

[(1, 20758556), (2, 10379278), (4, 5189639), (7, 2965508), (13, 1596812), (14, 1482754), (26, 798406), (28, 741377), (49, 423644), (52, 399203), (91, 228116), (98, 211822), (182, 114058), (196, 105911), (364, 57029), (637, 32588), (1274, 16294), (2548, 8147)]